Rod and tubing pulling machine



April 1939- M. L. DENNIS 2,153,793

ROD AND TUBING PULLING MACHINE Filed Dec. 5, 1936 4 Sheets-Sheet l Inventor bazjlvfiazzzzzs April 11, 1939. L NN S 2,153,793

ROD AND TUBING PULLING MACHINE Filed Dec. 5, 1936 4 Sheets-Sheet 2 Inventor 7 22, 60

9 MI jtiZiZZlS Attorneys April 1939- DENNIS 2,153,793

ROD AND TUBING PULLING MACHINE Filed Dec. 5, 1936 4 Sheets-Sheet 5 A iiorneys April 11, 1939. M DENNIS 2,153,793

ROD AND TUBING PULLING MACHINE File'cl Dec 5, 1956 4 Sheets-Sheet 4 7 M747. jenzzzs' A iiorneys Patented Apr. 11, 1939 I UNITED STATES PATENT OFFICE 2 Claims.

The present invention relates to new and useful improvements in rod and tubing pulling machines for use particularly in oil fields and has for one of its important objects to provide, in a manner as hereinafter set forth, an apparatus of this character embodying a novel construction and arrangement through the medium of which said apparatus may be conveniently moved from place to place,

Another very important object of the invention is to provide a rod and tubing pulling machine of the aforementioned character embodying a drum which is adapted to be driven from the power take-off of a tractor without the use of the usual endless drive chains or belts.

Still another very important object of the invention is to provide a rod and tubing pulling machine of the character described embodying novel means for controlling the drum.

' A still further important object of the invention is to provide a rod and tubing pulling machine embodying a novel construction and arrangement for mounting a sheave on the upper end portion of the mast.

Other objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters v of reference designate corresponding parts 30 throughout the several views, and wherein:

Figure 1 is a view in top plan of a rod and tubing-pulling machine constructed in accordance with the present invention, showing the mast in lowered position.

Figure 2 is a top plan view with the mast raised and shown in horizontal section.

Figure 3 is an elevational view of the lower portion of the mast with the drum, etc., mounted thereon.

Figure 4 is a vertical sectional view, taken substantially on the line 44 of Fig. 3, looking in the direction indicated by the arrows.

Figure 5 is a vertical sectional view, taken substantially on the line 5-5 of Fig. 3.

Figure 6 is a View in vertical longitudinal section through the drum, taken substantially on the line 6-6 of Fi 5.

Figure '7 is a detail view, showing the manner of mounting the brake operating lever on its shaft.

Figure 8 is a detail view in perspective of one of the brake band links,

Figure 9 is a detail view in perspective of the brake operating shaft.

Figure 10 is a detail view of an end portion of one of the brake bands.

Figure 11 is a view in vertical longitudinal section through the upper or free end portion of the mast, taken substantially on the line II-II of Fig. 1.

Figure 12 is an elevational view of the upper end portion of the mast.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a bolster I which is mounted on an axle on which supporting wheels 2 are journaled. The bolster I is formed to provide a notch or recess 3 the purpose of which will be presently set forth. Projecting from the aforementioned axle is a pair of rearwardly diverging bars 4 on the rear ends of 1 which a tubular transverse base 5 is hingedly mounted, as at 6. Rising from the base 5 is a tubular mast I which, when in lowered position, rests in the notch or recess 3 and projects forwardly beyond the bolster I and the supporting wheels 2. Tubular braces 8 extend between the base 5 and the mast I. The reference numeral 9 designates tubular struts which extend horizontally between the mast I and the braces 8.

Journaled. in bearings III which are provided therefor on the lower portion of the mast I and on one of the braces 8 is an inwardly inclined shaft II. Mounted on the shaft II is a drum which is designated generally by the reference numeral I2. As best seen in Fig. 6 of the drawings, the drum I2 comprises spaced heads I 3 having hub portions I4. Mounted on the hub portions I4 is a tubular core I5. Brake drums I6 are provided on the outer sides of the heads I3 and brake bands I! are mounted on said brake drums. The reference numeral I8 designates a gear which is mounted on one of the heads I3.

Mounted at an inclination below the shaft II and paralleling said shaft is a drive shaft I9 of polygonal cross section. The shaft I9 comprises a left threaded projecting end portion 20. The shaft I9 is journaled in bearings 2| which are provided therefore on a post 22 which rises from the base 5 and on the adjacent brace 8. Eye bolts 23, 24 and 25 are provided for securing the bearings 2| in position. Journaled in the eye bolt 23 and in a bearing 26 which is provided therefor on the mast 1 is a rocker shaft 21 which parallels the shafts I I and I9. Fixed on the outer end portion of the rocker shaft 21 is a brake lever 28. Arms 29 project from the rocker shaft 21 for connection with one end of the brake bands I! through the medium of links 30' of substantially the shape shown to advantage in Fig. 8 of the drawings. One end portion of the links 30 are engaged in eyes (H (see Fig. 10) provided therefor on one end of the brake bands H. The other ends of the brake bands H are connected to the rocker shaft 21 by means including links 32 which are substantially similar to the links 30 and connectors 33 which are loosely mounted on said rocker shaft. A spacer 34 (see Fig. 4) is provided between the eye of the bolt 23 and the brace 8 in which said bolt is mounted. Slidably mounted on the shaft I9 is a gear 35 which is adapted to engage and drive the gear I8. Slidably mounted in the eye bolts 24 and 25 is a rod 36 having one end connected to a hand lever 31 by a pin and slot arrangement 38. The hand lever 31 is mounted for swinging movement on an end portion of the base 5. A fork or yoke 39 is mounted on the rod 35 and engaged in an annular groove 49 on the gear 35 for shifting said gear on the shaft !9.

Referring now to Figs. 11 and 12 of the drawings, it will be seen that the mast "I terminates, at its free or upper end, in bifurcations 4I providing a slot 42. Mounted in the bifurcations 4i and traversing the slot 42 is a bolt 43 on which a sheave 44 is journaled, said sheave being operable in said slot 42. Metallic plates 45 are provided on the opposite sides of the sheave 44, said plates being arranged as shown in Fig. 11 of the drawings. Mounted on the bifurcations 4| and extending across the top thereof is a subsantially U-shaped frame 46 through which the bolt 43 passes and which is provided with additional securing bolts 41 and 48. Depending from the bight portion of the substantially U-shaped frame 45 is a pair of arms 49 which are engaged with the upper corner portions of the plates 45 on the outer sides of said plates. The bolt 41 passes through the arms 49 and the upper corner portions of the plates 45 and a spacer 50 is provided thereon between said plates. The bolt 43 passes through the lower corner portions of the plates 45 and a spacer 5| is mounted thereon. The outer corner portions of the plates 45 are secured together by bolts 52 having spacers 53 mounted thereon. The bolt 48 secures angularly projecting straps or ears 54 in position for attaching side guy lines to the upper portion of the mast I. A bail 55 is mounted on the bolt 43 on opposite sides of the mast I. The reference muneral 56 designates a hitch on the bight portion on the substantially U-shaped frame 46 for use when moving the apparatus from one point to another.

It is thought that the manner of using the apparatus will be readily apparent from a consideration of the foregoing, particularly to those skilled in the art to which the invention pertains. Briefly. the apparatus is manoeuvred into the desired position relative to the hole and secured. When in raised position and ready for operation, the mast l is disposed at an inclination with the upper end thereof substantially over the center of the hole. This arrangement is necessary in order that the operation of the usual tongs will not be interfered with. Of course, the cable (not shown) is trained over the sheave 44 and Wound on the drum I2. The construction and arrangement at the top of the mast I prevents the cable from jumping the sheave 44 as well as providing maximum strength and rigidity at this point. With the machine properly positioned relative to the hole and secured, the tractor is backed up to said machine with the power take-off thereof aligned with the base 5. The shaft I9 is then connected directly and positively to the power take-off of the tractor for actuation thereby through the medium of suitable means comprising a tumbling rod having a slip joint, universal joints, etc. The mast 'I is then raised and secured and, with the cable or line trained over the sheave 44 and connected to the drum I2 for winding thereon, the apparatus is substantially ready for operation. The drum I2 may, of course, be readily disconnected from the source of power by simply shifting the gear 35 out of engagement with the gear l8 through the medium of the hand lever 31. The drum I2 may be further conveniently controlled as desired by means of the brake lever 28. When the mast l is in lowered posiiion, the apparatus is easily balanced on the supporting wheels 2, the rear end. of said apparatus being somewhat the heavier.

It is believed that the many advantages of a rod and tubing pulling machine constructed in accordance with the present invention will be readily understood, and although a preferred embodiment of the apparatus is as illustrated and described,

it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:-

l. A rod and tubing pulling machine comprising a mast including a bifurcation on one end defining a slot, a sheave rotatably mounted in said slot, plates mounted on opposite sides of said sheave, a substantially U-shaped frame mounted on the bifurcation and extending across the free ends thereof, spaced arms projecting from said frame and engaged with the outer sides of the plates, securing bolts for the frame extending through the bifurcation and the plates, one of said bolts also extending through said arms, and spacers for the plates mounted on said securing bolts.

2. In a rod and tubing pulling machine including a supporting structure, a mast including a bifurcation on one end defining a slot, a sheave rotatably mounted in said slot, plates mounted on opposite sides of said sheave, a substantially U-shaped frame mounted on the bifurcation and extending across the free ends thereof, spaced arms projecting from said frame and engaged with the outer sides of the plates, and securing bolts for the frame extending through the bifurcation and the plates, one of said bolts also extending through said arms.

M. L. DENNIS. 

